package com.lifeng.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.data.redis.support.atomic.RedisAtomicLong;

/**
 * Created by lifeng on 2019/3/27.
 * 自定义redis的一些属性
 * 比如序列化和反序列化
 * 此类可以没有
 */
@Configuration
public class RedisConfig {
    @Bean
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate template = new RedisTemplate();
        template.setConnectionFactory(redisConnectionFactory);
        //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(mapper);
        template.setValueSerializer(serializer);
        //使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.afterPropertiesSet();
        return template;
    }


    /**
     * redis自增id
     */
    @Bean
    public RedisAtomicLong redisAtomicLong(RedisTemplate redisTemplate){
        String idKey = "cloud-redis:idkey";
        Long initVal = 10000000000L;//初始值
        if(redisTemplate.opsForValue().get(idKey) == null){
            return new RedisAtomicLong(idKey,redisTemplate.getConnectionFactory(),initVal);
        }else{
            return new RedisAtomicLong(idKey,redisTemplate.getConnectionFactory());
        }
    }
}
